The popularity of the green movement seems to be growing and with so many people becoming involved, new inventions are consistently being developed to promote sustainable living. Learn about the latest inventions from the past decade that are helping to promote green living.

One of the best ways to cut down on our carbon footprint is to use mass transportation, which of course is much easier to do when cities offer convenient transit options. Find out which American cities have the best public mass transportation systems and how they have been recognized.